diff --git a/ncat/ncat_listen.c b/ncat/ncat_listen.c
index 3bf7e0e3e..1dd0fd82d 100644
--- a/ncat/ncat_listen.c
+++ b/ncat/ncat_listen.c
@@ -260,6 +260,23 @@ static int ncat_listen_stream(int proto)
         setup_ssl_listen();
 #endif
 
+    /* Check whether stdin is closed. Because we treat this fd specially, we
+     * can't risk it being reopened for an incoming connection, so we'll hold
+     * it open instead. */
+    if (fcntl(STDIN_FILENO, F_GETFD) == -1 && errno == EBADF) {
+      logdebug("stdin is closed, attempting to reserve STDIN_FILENO\n");
+#ifdef WIN32
+      rc = open("NUL", O_RDONLY);
+#else
+      rc = open("/dev/null", O_RDONLY);
+#endif
+      if (rc >= 0 && rc != STDIN_FILENO) {
+        /* Oh well, we tried */
+        logdebug("Couldn't reserve STDIN_FILENO\n");
+        close(rc);
+      }
+    }
+
     /* We need a list of fds to keep current fdmax. The second parameter is a
        number added to the supplied connection limit, that will compensate
        maxfds for the added by default listen and stdin sockets. */
@@ -673,6 +690,23 @@ static int ncat_listen_dgram(int proto)
     Signal(SIGPIPE, SIG_IGN);
 #endif
 
+    /* Check whether stdin is closed. Because we treat this fd specially, we
+     * can't risk it being reopened for an incoming connection, so we'll hold
+     * it open instead. */
+    if (fcntl(STDIN_FILENO, F_GETFD) == -1 && errno == EBADF) {
+      logdebug("stdin is closed, attempting to reserve STDIN_FILENO\n");
+#ifdef WIN32
+      i = open("NUL", O_RDONLY);
+#else
+      i = open("/dev/null", O_RDONLY);
+#endif
+      if (i >= 0 && i != STDIN_FILENO) {
+        /* Oh well, we tried */
+        logdebug("Couldn't reserve STDIN_FILENO\n");
+        close(i);
+      }
+    }
+
     /* set for selecting udp listening sockets */
     fd_set listen_fds;
     fd_list_t listen_fdlist;
@@ -858,11 +892,16 @@ static int ncat_listen_dgram(int proto)
 
             if (FD_ISSET(STDIN_FILENO, &fds)) {
                 nbytes = Read(STDIN_FILENO, buf, sizeof(buf));
-                if (nbytes < 0) {
-                    loguser("%s.\n", strerror(errno));
-                    return 1;
-                } else if (nbytes == 0) {
-                    return 0;
+                if (nbytes <= 0) {
+                    if (nbytes < 0 && o.verbose) {
+                        logdebug("Error reading from stdin: %s\n", strerror(errno));
+                    } else if (nbytes == 0 && o.debug) {
+                        logdebug("EOF on stdin\n");
+                    }
+                    FD_CLR(STDIN_FILENO, &read_fds);
+                    if (nbytes < 0)
+                        return 1;
+                    continue;
                 }
                 if (o.crlf)
                     fix_line_endings((char *) buf, &nbytes, &tempbuf, &crlf_state);